CN208358010U - Keeper electrode for electric resistance welding - Google Patents
Keeper electrode for electric resistance welding Download PDFInfo
- Publication number
- CN208358010U CN208358010U CN201820988829.0U CN201820988829U CN208358010U CN 208358010 U CN208358010 U CN 208358010U CN 201820988829 U CN201820988829 U CN 201820988829U CN 208358010 U CN208358010 U CN 208358010U
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- China
- Prior art keywords
- bolt
- hole
- bottom crown
- electric resistance
- resistance welding
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Abstract
The utility model discloses a kind of keeper electrodes for electric resistance welding, the keeper electrode (100) includes the bottom crown (2) of the top crown (1) being connected respectively with positive pole and cathode and setting on the table, plate (4) is placed on the bottom crown (2), and it which is provided with welding hole, bolt (3) is suitable for matching with the welding hole, the top crown (1) can be moved up and down relative to the bottom crown (2) to clamp and weld the bolt (3) and the plate (4), the bottom crown (2) is equipped with pole hole (2A), the bolt (3) is suitable for being interspersed in the pole hole (2A), and insulation sleeve (5) are additionally provided between the pole hole (2A) and the bolt (3).The keeper electrode can be to avoid generating electric arc in the welding process between bottom crown and bolt；To avoid keeper electrode that ablation occurs, the service life of bottom crown is improved；And bolt is less likely to occur to loosen, and welding precision is high.
Description
Technical field
The utility model relates to resistance welding equipment field more particularly to a kind of keeper electrodes for electric resistance welding.
Background technique
Currently, the keeper electrode for electric resistance welding is as shown in Figure 1, include top crown 1 ' and bottom crown 2 ', plate 4 ' is placed in
On the bottom crown 2 ', bolt 3 ' is plugged on bottom crown 2 ', and is plugged in the pole hole 2A ' of bottom crown 2 '；This structure exists
During electric resistance welding, it can be in contact between bolt 3 ' and pole hole 2A ' and generate electric arc FF ' by 2 ' ablation of bottom crown, thus shadow
Ring the service life of bottom crown 2 '；And be easy to loosen in 3 ' grafting of bolt extremely hole 2A ' in the prior art, welding precision is not
It is high.
Summary of the invention
The utility model aims to solve at least one of the above-mentioned problems of the prior art, provides a kind of for electric resistance welding
Keeper electrode, which can be to avoid generating electric arc in the welding process between bottom crown and bolt；It is fixed to avoid
Ablation occurs for position electrode, improves the service life of bottom crown；And bolt is less likely to occur to loosen, and welding precision is high.
To achieve the goals above, the utility model provides a kind of keeper electrode for electric resistance welding, the keeper electrode
Bottom crown including the top crown that is connected respectively with positive pole and cathode and setting on the table, plate are placed in the lower pole
On plate, and it which is provided with welding hole, bolt is suitable for matching with the welding hole, and the top crown can be relative to the bottom crown
It moves up and down to clamp and weld the bolt and the plate, the bottom crown is equipped with pole hole, and the bolt is suitable for being interspersed in
In the pole hole, and insulation sleeve is additionally provided between the pole hole and the bolt.
In the technical scheme, bolt and plate are subjected to pre-assembled first, and bolt are plugged in the hole of pole, and make spiral shell
Bolt is in contact with insulation sleeve, and welding current is conducted to plate through bolt from top crown, then conducts to bottom crown, bolt and plate
Ring-shaped contact area generate resistance heat, welding is completed by the pressurization of top crown and bottom crown；In the process, by under
Insulation sleeve is set in the pole hole of electrode, it can be to avoid bolt is in contact with the pole hole of lower electrode and generates electric arc and generates burning to pole hole
Erosion, to extend the service life of bottom crown.
In addition, the keeper electrode according to the present utility model for electric resistance welding, can also have following technical characteristic:
Further, the bottom crown includes: the diameter of axle, and the diameter of axle is equipped with pole hole up and down；Flange, the method
Orchid is extended outwardly by the outer wall of the diameter of axle, and the thickness of the up and down direction of the diameter of axle is greater than the thickness of the flange up and down direction
Degree.
Further, the pole hole includes: the first hole portion, and first hole portion is from the upper edge of the bottom crown to downward
It stretches；The lower end of the first hole portion is arranged in second hole portion, second hole portion, and the insulation is set in second hole portion,
The length of the bolt is greater than the depth of first hole portion.
Further, the internal diameter of first hole portion is greater than the outer diameter of the bolt.
Further, the insulation sleeve is adapted with the bolt.
Preferably, the upper edge of the sets of holes of the insulation sleeve is equipped with chamfering.
Further, it is connected between the bottom crown and the workbench by fastener.
Preferably, it is fixedly connected between the bottom crown and the workbench by pin, the bottom crown is equipped with more
A first positioning hole, the workbench are equipped with multiple second location holes, the multiple first positioning hole and the multiple second
Location hole corresponds, and the pin sequentially passes through the first positioning hole and the second location hole.
Preferably, the junction of the diameter of axle and the flange is equipped with rounded corner.
Preferably, the insulation sleeve is bakelite.
According to the keeper electrode for electric resistance welding of the utility model embodiment, additional technical feature also has following skill
Art effect: by by the thickness design of the diameter of axle at be greater than flange thickness, can be in order to the placement and welding of plate and bolt；It is logical
It crosses and is designed to be adapted with the bolt by the insulation sleeve, can guarantee the concentricity of bolt and bottom crown in this way, to bolt
Fixed function is played, welding precision is improved.
Detailed description of the invention
Fig. 1 is the structural schematic diagram for being used for the keeper electrode of electric resistance welding in the prior art；
Fig. 2 is the structural schematic diagram in the utility model for the keeper electrode of electric resistance welding；
Fig. 3 is the structural schematic diagram of bottom crown in Fig. 2；
Appended drawing reference:
Keeper electrode 100；Top crown 1；Bottom crown 2；The diameter of axle 21；Flange 22；Pole hole 2A；First hole portion 2A1；Second hole portion
2A2；Rounded corner 2B；Bolt 3；Plate 4；Insulation sleeve 5；Sets of holes 51；Welding current EE
Top crown 1 '；Bottom crown 2 '；Pole hole 2A '；Bolt 3 '；Plate 4 '；Electric arc FF '.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawing.
According to a kind of keeper electrode for electric resistance welding of the utility model embodiment, as shown in Figure 2 and Figure 3, the positioning
Electrode 100 includes the bottom crown 2 of the top crown 1 being connected respectively with positive pole and cathode and setting on the table, and plate 4 is set
In on the bottom crown 2, and it which is provided with welding hole, bolt 3 is suitable for matching with the welding hole, and the top crown 1 can phase
The bottom crown 2 is moved up and down to clamp and weld the bolt 3 and the plate 4, the bottom crown 2 is equipped with pole hole
2A, the bolt 3 is suitable for being interspersed in the pole hole 2A, and is additionally provided with insulation between the pole hole 2A and the bolt 3
Set 5.
It is understood that bolt 3 and plate 4 are carried out pre-assembled first, and bolt 3 is plugged in the 2A of pole hole, and
Bolt 3 is set to be in contact with insulation sleeve 5, welding current EE is conducted to plate 4 through bolt 3 from top crown 1, then conducts to bottom crown
2, welding is completed in the ring-shaped contact area generation resistance heat of bolt 3 and plate 4, the pressurization for passing through top crown 1 and bottom crown 2；?
During this, by the way that insulation sleeve 5 is arranged in the pole hole 2A of lower electrode, it can connect to avoid bolt 3 with the pole hole 2A of lower electrode
It touches and generates electric arc and ablation is generated to pole hole 2A, to extend the service life of bottom crown 2.
In one embodiment of the utility model, as shown in Figure 2 and Figure 3, the bottom crown 2 includes: the diameter of axle 21, described
The diameter of axle 21 is equipped with pole hole 2A up and down；Flange 22, the flange 22 is extended outwardly by the outer wall of the diameter of axle 21, and institute
The thickness for stating the up and down direction of the diameter of axle 21 is greater than the thickness of 22 up and down direction of flange；Specifically, bottom crown 2 is boss-shaped one
Forming structure can be integrally formed, so that is, in the production of bottom crown 2 and manufacturing process by way of casting or forging
Can be improved the overall structural strength of bottom crown 2, and can to avoid the trouble of assembly, by by the thickness design of the diameter of axle 21 at
It, can be in order to the placement and welding of plate 4 and bolt 3 greater than the thickness of flange 22.
In one embodiment of the utility model, as shown in Figure 2 and Figure 3, the pole hole 2A includes: the first hole portion 2A1,
The first hole portion 2A1 is extended downwardly by the upper edge of the bottom crown 2；Second hole portion 2A2, the second hole portion 2A2 setting
In the lower end of the first hole portion 2A1, the insulation sleeve 5 is arranged in the second hole portion 2A2, and the length of the bolt 3 is greater than institute
State the depth of the first hole portion 2A1, that is to say, that bolt 3 passes through the first hole portion 2A1 and extends in the second hole portion 2A2, passes through second
Insulation sleeve 5 in hole portion 2A2 obstructs bolt 3 and is in contact with bottom crown 2.
In one embodiment of the utility model, the internal diameter of the first hole portion 2A1 is greater than the outer diameter of the bolt 3,
Specifically, the first hole portion 2A1 of setting be due in order to guarantee the annular nugget area of plate 4 and bolt 3 as far as possible close to bottom crown 2,
And it will not be in contact with the first hole portion 2A1 when bolt 3 can be made to be plugged in bottom crown 2 in this way.
In one embodiment of the utility model, as shown in Figure 2 and Figure 3, the insulation sleeve 5 is suitable with 3 phase of bolt
Match, in other words, 51 internal diameter of sets of holes of the insulation sleeve 5 adapts to the outer diameter of the bolt 3, i.e., the sets of holes of the described insulation sleeve 5
51 internal diameters are also smaller than the internal diameter of the first hole portion 2A1, can guarantee the concentricity of bolt 3 Yu bottom crown 2 in this way, play to bolt 3
Fixed function improves welding precision；Preferably, the upper edge of the sets of holes 51 of the insulation sleeve 5 is equipped with chamfering, passes through setting
Bolt 3 can be more easily plugged in the sets of holes 51 of insulation sleeve 5 by chamfering.
In some embodiments of the utility model, connected between the bottom crown 2 and the workbench by fastener.
Specifically, it is fixedly connected between the bottom crown 2 and the workbench by pin, the bottom crown 2 is equipped with multiple first
Location hole, the workbench are equipped with multiple second location holes, the multiple first positioning hole and the multiple second location hole
It corresponds, the pin sequentially passes through the first positioning hole and the second location hole.By pin fixation can will under
Pole plate 2, which is stablized, to be fixed, and the welding precision during electric resistance welding is improved；And convenient disassembly, convenient for the replacement of bottom crown 2.
Certain the utility model is not restricted to this, can also be connected bolt 3 between bottom crown 2 and workbench, by way of welding
It is attached.
Preferably, as shown in Figure 2 and Figure 3, the junction of the diameter of axle 21 and the flange 22 is equipped with rounded corner 2B, passes through
The phenomenon that setting rounded corner 2B can drop stress concentration in the junction of the diameter of axle 21 and flange 22, improves the fatigue of bottom crown 2
Service life.
Preferably, the insulation sleeve 5 is bakelite, and bakelite is called phenoplasts, it is with higher mechanical strong
Degree, good insulating properties, it is heat-resisting, corrosion-resistant, therefore be usually used in manufacturing appliance material, the work of electric resistance welding can be met well
Environment.
In the description of the utility model, it is to be understood that the instructions such as term " on ", " upper end ", "lower", " lower end "
Orientation or positional relationship is merely for convenience of describing the present invention and simplifying the description, rather than shown in indicating or implying
Device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as practical new to this
The limitation of type.
In addition, term " first ", " second " are used for description purposes only, and should not be understood as indicating or implying relatively important
Property or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Person implicitly includes one or more this feature.The meaning of " plurality " is two or two in the description of the present invention,
More than a, unless otherwise specifically defined.
In the present invention unless specifically defined or limited otherwise, fisrt feature is in the second feature " on " or " down "
It can be that fisrt feature is directly contacted with second feature or the first and second features are by intermediary mediate contact.
In the present invention unless specifically defined or limited otherwise, the arts such as term " connected ", " connection ", " fixation "
Language should broadly understood, for example, it may be being fixedly connected, may be a detachable connection, or be integrally formed；It can be machinery
Connection；It can be directly connected, the connection inside two elements or two can also be can be indirectly connected through an intermediary
The interaction relationship of a element.For the ordinary skill in the art, above-mentioned art can be understood as the case may be
The concrete meaning of language in the present invention.
In the description of the specification of the utility model, reference term " one embodiment ", " some embodiments " etc. are retouched
It states and means that particular features, structures, materials, or characteristics described in conjunction with this embodiment or example are contained in the utility model extremely
In few one embodiment or example.In the present specification, schematic expression of the above terms are necessarily directed to identical
Embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be in any one or more implementations
It can be combined in any suitable manner in example or example.In addition, without conflicting with each other, those skilled in the art can be by this
Different embodiments or examples described in specification and different embodiments or exemplary feature are combined.
Although the embodiments of the present invention have been shown and described above, it is to be understood that above-described embodiment is
Illustratively, it should not be understood as limiting the present invention, those skilled in the art are in the scope of the utility model
Inside it can make changes, modifications, alterations, and variations to the above described embodiments.
Claims (10)
1. a kind of keeper electrode for electric resistance welding, the keeper electrode (100) includes being connected respectively with positive pole and cathode
Top crown (1) and setting bottom crown (2) on the table, plate (4) is placed on the bottom crown (2), and which is provided with
Welding hole, bolt (3) are suitable for matching with the welding hole, and the top crown (1) can be relative to moving down on the bottom crown (2)
It is dynamic that the bolt (3) and the plate (4) are welded with clamping, which is characterized in that the bottom crown (2) is equipped with pole hole (2A),
The bolt (3) is suitable for being interspersed in the pole hole (2A), and is additionally provided between the pole hole (2A) and the bolt (3)
Insulation sleeve (5).
2. the keeper electrode according to claim 1 for electric resistance welding, which is characterized in that the bottom crown (2) includes:
The diameter of axle (21), the diameter of axle (21) are equipped with pole hole (2A) up and down；
Flange (22), the flange (22) is extended outwardly by the outer wall of the diameter of axle (21), and the upper and lower of the diameter of axle (21)
To thickness be greater than the flange (22) up and down direction thickness.
3. the keeper electrode according to claim 1 or 2 for electric resistance welding, which is characterized in that the pole hole (2A) includes:
First hole portion (2A1), first hole portion (2A1) are extended downwardly by the upper edge of the bottom crown (2)；
Second hole portion (2A2), second hole portion (2A2) are arranged in the lower end of the first hole portion (2A1), and the insulation sleeve (5) sets
It sets in second hole portion (2A2), the length of the bolt (3) is greater than the depth of first hole portion (2A1).
4. the keeper electrode according to claim 3 for electric resistance welding, which is characterized in that first hole portion (2A1)
Internal diameter is greater than the outer diameter of the bolt (3).
5. the keeper electrode according to claim 3 for electric resistance welding, which is characterized in that the insulation sleeve (5) with it is described
Bolt (3) is adapted.
6. the keeper electrode according to claim 5 for electric resistance welding, which is characterized in that the sets of holes of the insulation sleeve (5)
(51) upper edge is equipped with chamfering.
7. the keeper electrode according to claim 1 for electric resistance welding, which is characterized in that the bottom crown (2) with it is described
It is connected between workbench by fastener.
8. the keeper electrode according to claim 7 for electric resistance welding, which is characterized in that the bottom crown (2) with it is described
It is fixedly connected between workbench by pin, the bottom crown (2) is equipped with multiple first positioning holes, and the workbench is equipped with
Multiple second location holes, the multiple first positioning hole and the multiple second location hole correspond, and the pin is successively worn
Cross the first positioning hole and the second location hole.
9. the keeper electrode according to claim 2 for electric resistance welding, which is characterized in that the diameter of axle (21) and the method
The junction of blue (22) is equipped with rounded corner (2B).
10. according to claim 1, being used for the keeper electrode of electric resistance welding described in any one of 2,4,5,6,7,8,9, feature exists
In the insulation sleeve (5) is bakelite.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820988829.0U CN208358010U (en) | 2018-06-25 | 2018-06-25 | Keeper electrode for electric resistance welding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820988829.0U CN208358010U (en) | 2018-06-25 | 2018-06-25 | Keeper electrode for electric resistance welding |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208358010U true CN208358010U (en) | 2019-01-11 |
Family
ID=64926759
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820988829.0U Active CN208358010U (en) | 2018-06-25 | 2018-06-25 | Keeper electrode for electric resistance welding |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208358010U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110181159A (en) * | 2019-06-26 | 2019-08-30 | 安徽大洋机械制造有限公司 | A kind of automobile back wheel packet welding gun |
| CN110181160A (en) * | 2019-06-26 | 2019-08-30 | 安徽大洋机械制造有限公司 | A kind of automobile back wheel packet plant weldering nail |
| CN110181161A (en) * | 2019-06-26 | 2019-08-30 | 安徽大洋机械制造有限公司 | A kind of automobile back wheel packet welding gun electrode bar |
-
2018
- 2018-06-25 CN CN201820988829.0U patent/CN208358010U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110181159A (en) * | 2019-06-26 | 2019-08-30 | 安徽大洋机械制造有限公司 | A kind of automobile back wheel packet welding gun |
| CN110181160A (en) * | 2019-06-26 | 2019-08-30 | 安徽大洋机械制造有限公司 | A kind of automobile back wheel packet plant weldering nail |
| CN110181161A (en) * | 2019-06-26 | 2019-08-30 | 安徽大洋机械制造有限公司 | A kind of automobile back wheel packet welding gun electrode bar |
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